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Old 07-16-2019, 11:44 AM   #1
Matt Man
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Aftermarket Air Cleaner

I am buying a aftermarket air cleaner for my 81 k10 it has a quadrajet 4 barrel with electric choke and hei distributor. Is there anything I should look for when buying a air cleaner. Thanks.
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Old 07-16-2019, 06:46 PM   #2
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Re: Aftermarket Air Cleaner

Quote:
Originally Posted by Matt Man View Post
I am buying a aftermarket air cleaner for my 81 k10 it has a quadrajet 4 barrel with electric choke and hei distributor. Is there anything I should look for when buying a air cleaner. Thanks.
Look for a base that clears HEI large top distributor caps/wiring. Some have clearance built in; some don't.
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Old 07-16-2019, 06:53 PM   #3
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Re: Aftermarket Air Cleaner

I put an aftermarket on mine. Got an air cleaner riser kit to clear everything.
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Old 07-17-2019, 08:26 AM   #4
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Re: Aftermarket Air Cleaner

a CLOSED element....the open element actually kills power (well, doesnt kill it, but makes less overall)

a stock aircleaner, with better filter and smooth intake tube would be the better choice.
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Old 07-17-2019, 09:44 AM   #5
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Re: Aftermarket Air Cleaner

stormin08 = yes .

i never understood why closed engine bays with all the heat and everyone wants open elements to suck in all the hot air . and we know colder air makes more power .

my edelbrock pro flo 4 has the stock 80's gm truck closed setup on it and snorkel all the way to the core support hole.

i understand if your showing it off all the time . but if you just drive it and want performance why do the open ? ? ?
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Old 07-17-2019, 10:14 AM   #6
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Re: Aftermarket Air Cleaner

Every vehicle is different in regards to effectiveness of an air cleaner set-up. Saying unequivocally that one way is better vs. the other isn't technically correct either.

Testing & validation is the only way to say one way out performs the other in a particular vehicle.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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Old 07-17-2019, 03:11 PM   #7
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Re: Aftermarket Air Cleaner

If it is a daily driver, some provision for both PVC and THERMAC is a good thing. Especially in the cold winters of Idaho. And keep in mind, that a daily driver spends most of its time with the largest air restriction being the mostly closed throttle plates.
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Old 07-19-2019, 10:10 AM   #8
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Re: Aftermarket Air Cleaner

it has been well proven, open element filters in the hot bay MAKE LESS POWER...

the stock air cleaners have provisions WITH VALVES for a reason...hot air to aid in warm up and emissions when cold, close off when warm and draw cool air.

do your homework, open elements are visual aids.
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Old 07-19-2019, 06:38 PM   #9
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Re: Aftermarket Air Cleaner

I understand the stock air intake is a cold air intake I plan to run it mostly in the winter to help warmup. I bought a open element to dress up the engine bay some as I removed the emissions components from my truck. I bought one from the parts store with a riser and it clears fine. I am also towing a trailer to California and back in August and I will be running the oem intake for the hot temperatures in the desert. Appreciate the info from everyone.
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K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934

The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903



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Old 07-19-2019, 09:49 PM   #10
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Re: Aftermarket Air Cleaner

A drop base air cleaner will cost you a few hp vs a raised base air cleaner.

The velocity stack style will cost the least hp if you have the room for the tallness.
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Old 07-19-2019, 10:13 PM   #11
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Re: Aftermarket Air Cleaner

I like how so many say things have been proven, but have no proof. pretty typical. An old truck with a stock air cleaner is pulling air through a tiny snorkel made to reduce noise. The air it pulls is the same as an open element.
An open air cleaner of the early 70s Chevy type is often regarded as good and better than the snorkel type above..
A ducted system pulling cool air at the front of the vehicle is probably what folks mean but don't say. is better.
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Old 07-20-2019, 07:45 AM   #12
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Re: Aftermarket Air Cleaner

well, when replying in a thread based on these year trucks, they had feed tubes into the closed elements.

i would agree, that a closed element that draws through a tube under hood is less than stellar, and probably so when compared to an open element.

but since these years had a feed tube, the cooler closed air element makes more power across the board.

even very recently, BANKS has release a gauge setup that measure air density, and can be calculated to real world HP...interesting stuff
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Old 07-20-2019, 08:12 AM   #13
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Re: Aftermarket Air Cleaner

Cold air is a big advantage...I saw it in person when I had my truck on the dyno....all my intake is underhood..all they did was open the hood and it jumped about 20hp...he was proving to me what a advantage a cold air intake could be
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